·詳細說明:MPEG4網絡傳輸(DSnetwork)修改后的cpp和.h文件,(精)-MPEG4 network transmission (DSnetwork) revises after cpp and h the document, (fine) 相關函數/類: ZeroMemory SetRectEmpty 文件列表: 修改 ..
上傳時間: 2013-04-24
上傳用戶:qazwsxedc
·詳細說明:C++寫的DTMF算法,內含一個pcm數據文件,讀入文件并分析按鍵-c writes the DTMF algorithm, contains a pcm data file, the read-in document and the analysis pressed key。文件列表: DTMF ....\DTMF.cpp ....\DTMF.
上傳時間: 2013-04-24
上傳用戶:Miyuki
·詳細說明:功能非常完善的MP3編譯碼器,輸入文件WAV或AIFF,能夠方便的嵌入到你自己的系統當中.- Function extremely perfect MP3 arranges the decoder, input document WAV or AIFF, can facilitate inserting to you system文件列表: bladeenc-082-src
上傳時間: 2013-06-08
上傳用戶:anpa
附件有二個文當,都是dxp2004教程 ,第一部份DXP2004的相關快捷鍵,以及中英文對照的意思。第二部份細致的講解的如何使用DXP2004。 dxp2004教程第一部份: 目錄 1 快捷鍵 2 常用元件及封裝 7 創建自己的集成庫 12 板層介紹 14 過孔 15 生成BOM清單 16 頂層原理圖: 16 生成PCB 17 包地 18 電路板設計規則 18 PCB設計注意事項 20 畫板心得 22 DRC 規則英文對照 22 一、Error Reporting 中英文對照 22 A : Violations Associated with Buses 有關總線電氣錯誤的各類型(共 12 項) 22 B :Violations Associated Components 有關元件符號電氣錯誤(共 20 項) 22 C : violations associated with document 相關的文檔電氣錯誤(共 10 項) 23 D : violations associated with nets 有關網絡電氣錯誤(共 19 項) 23 E : Violations associated with others 有關原理圖的各種類型的錯誤 (3 項 ) 24 二、 Comparator 規則比較 24 A : Differences associated with components 原理圖和 PCB 上有關的不同 ( 共 16 項 ) 24 B : Differences associated with nets 原理圖和 PCB 上有關網絡不同(共 6 項) 25 C : Differences associated with parameters 原理圖和 PCB 上有關的參數不同(共 3 項) 25 Violations Associated withBuses欄 —總線電氣錯誤類型 25 Violations Associated with Components欄 ——元件電氣錯誤類型 26 Violations Associated with documents欄 —文檔電氣連接錯誤類型 27 Violations Associated with Nets欄 ——網絡電氣連接錯誤類型 27 Violations Associated with Parameters欄 ——參數錯誤類型 28 dxp2004教程第二部份 路設計自動化( Electronic Design Automation ) EDA 指的就是將電路設計中各種工作交由計算機來協助完成。如電路圖( Schematic )的繪制,印刷電路板( PCB )文件的制作執行電路仿真( Simulation )等設計工作。隨著電子工業的發展,大規模、超大規模集成電路的使用是電路板走線愈加精密和復雜。電子線路 CAD 軟件產生了, Protel 是突出的代表,它操作簡單、易學易用、功能強大。 1.1 Protel 的產生及發展 1985 年 誕生 dos 版 Protel 1991 年 Protel for Widows 1998 年 Protel98 這個 32 位產品是第一個包含 5 個核心模塊的 EDA 工具 1999 年 Protel99 既有原理圖的邏輯功能驗證的混合信號仿真,又有了 PCB 信號完整性 分析的板級仿真,構成從電路設計到真實板分析的完整體系。 2000 年 Protel99se 性能進一步提高,可以對設計過程有更大控制力。 2002 年 Protel DXP 集成了更多工具,使用方便,功能更強大。 1.2 Protel DXP 主要特點 1 、通過設計檔包的方式,將原理圖編輯、電路仿真、 PCB 設計及打印這些功能有機地結合在一起,提供了一個集成開發環境。 2 、提供了混合電路仿真功能,為設計實驗原理圖電路中某些功能模塊的正確與否提供了方便。 3 、提供了豐富的原理圖組件庫和 PCB 封裝庫,并且為設計新的器件提供了封裝向導程序,簡化了封裝設計過程。 4 、提供了層次原理圖設計方法,支持“自上向下”的設計思想,使大型電路設計的工作組開發方式成為可能。 5 、提供了強大的查錯功能。原理圖中的 ERC (電氣法則檢查)工具和 PCB 的 DRC (設計規則檢查)工具能幫助設計者更快地查出和改正錯誤。 6 、全面兼容 Protel 系列以前版本的設計文件,并提供了 OrCAD 格式文件的轉換功能。 7 、提供了全新的 FPGA 設計的功能,這好似以前的版本所沒有提供的功能。
上傳時間: 2013-10-22
上傳用戶:qingzhuhu
目錄 目錄 1 快捷鍵 2 常用元件及封裝 7 創建自己的集成庫 12 板層介紹 14 過孔 15 生成BOM清單 16 頂層原理圖: 16 生成PCB 17 包地 18 電路板設計規則 18 PCB設計注意事項 20 畫板心得 22 DRC 規則英文對照 22 一、Error Reporting 中英文對照 22 A : Violations Associated with Buses 有關總線電氣錯誤的各類型(共 12 項) 22 B :Violations Associated Components 有關元件符號電氣錯誤(共 20 項) 22 C : violations associated with document 相關的文檔電氣錯誤(共 10 項) 23 D : violations associated with nets 有關網絡電氣錯誤(共 19 項) 23 E : Violations associated with others 有關原理圖的各種類型的錯誤 (3 項 ) 24 二、 Comparator 規則比較 24 A : Differences associated with components 原理圖和 PCB 上有關的不同 ( 共 16 項 ) 24 B : Differences associated with nets 原理圖和 PCB 上有關網絡不同(共 6 項) 25 C : Differences associated with parameters 原理圖和 PCB 上有關的參數不同(共 3 項) 25 Violations Associated withBuses欄 —總線電氣錯誤類型 25 Violations Associated with Components欄 ——元件電氣錯誤類型 26 Violations Associated with documents欄 —文檔電氣連接錯誤類型 27 Violations Associated with Nets欄 ——網絡電氣連接錯誤類型 27 Violations Associated with Parameters欄 ——參數錯誤類型 28
上傳時間: 2014-03-26
上傳用戶:kytqcool
This document was developed under the Standard Hardware and Reliability Program (SHARP) TechnologyIndependent Representation of Electronic Products (TIREP) project. It is intended for use by VHSIC HardwareDescription Language (VHDL) design engineers and is offered as guidance for the development of VHDL modelswhich are compliant with the VHDL Data Item Description (DID DI-EGDS-80811) and which can be providedto manufacturing engineering personnel for the development of production data and the subsequent productionof hardware. Most VHDL modeling performed to date has been concentrated at either the component level orat the conceptual system level. The assembly and sub-assembly levels have been largely disregarded. Under theSHARP TIREP project, an attempt has been made to help close this gap. The TIREP models are based upon lowcomplexity Standard Electronic Modules (SEM) of the format A configuration. Although these modules are quitesimple, it is felt that the lessons learned offer guidance which can readily be applied to a wide range of assemblytypes and complexities.
上傳時間: 2014-12-23
上傳用戶:xinhaoshan2016
Abstract: This document explains how the Cupertino (MAXREFDES5#) subsystem reference design meets the higher resolution, higher voltage,and isolation needs of industrial control and industrial automation applications. Hardware and firmware design files as well as FFTs andhistograms from lab measurements are provided.
上傳時間: 2013-10-21
上傳用戶:mnacyf
Abstract: This tutorial discusses proper printed-circuit board (PCB) grounding for mixed-signal designs. Formost applications a simple method without cuts in the ground plane allows for successful PCB layouts withthis kind of IC. We begin this document with the basics: where the current flows. Later, we describe how toplace components and route signal traces to minimize problems with crosstalk. Finally, we move on toconsider power supply-currents and end by discussing how to extend what we have learned to circuits withmultiple mixed-signal ICs.
上傳時間: 2013-11-04
上傳用戶:pol123
Abstract: This application note describes how sampling clock jitter (time interval error or "TIE jitter") affectsthe performance of delta-sigma digital-to-analog converters (DACs). New insights explain the importanceof separately specifying low-frequency (< 2x passband frequency) and high-frequency or wideband (> 2xpassband frequency) jitter tolerance in these devices. The article also provides an application example ofa simple highly jittered cycle-skipped sampling clock and describes a method for generating a properbroadband jittered clock. The document then goes on to compare Maxim's audio DAC jitter tolerance tocompetitor audio DACs. Maxim's exceptionally high jitter tolerance allows very simple and low-cost sampleclock implementations.
上傳時間: 2013-10-25
上傳用戶:banyou
Abstract: Most magnetic read head data sheets do not fully specify the frequency-dependent components andare often vague when specifying other key parameters. In some cases, the specifications of two very similarheads from two different manufacturers might be quite different in terms of parameters specified and omitted.The limitations in the data sheets make designing an optimum card reading system unnecessarily difficult andtime consuming. This document outlines a strategy to overcome the above shortcomings and offers guidelinesto overcome the noise issues.
上傳時間: 2013-11-13
上傳用戶:dysyase